transponder rfid

A BS structured system that invokes client hardware, such as an RFID reader, on a client computer through a browser. BS structure of the system, the client has installed the RF card reader, the driver is also installed, working properly. After the customer login system through the browser, want to directly through the browser to access the card reader, can be achieved, Firefox and Internet Explorer can support it. ------Solution-------------------- Th

Backstage Manager to each product affixed to the RF card as a unique identification, so to the corresponding RFID card to write the response information, I here in order to facilitate the simulation of the demo only write product number, price, name of these fields, and then to put the written goods uploaded backstage, Written from the background to the commodity table (Goods) in the database, where VB accesses the backend code as follows:

0x00 Preface I have always wanted to play wireless security, but wangcai said that the threshold is low (where is it low? =. = Web dog: I am stupid, Wang). I started ACR122u and wanted to get into trouble from NFC. Now I have read this article to

BS structure of the system, the client has installed the RF card reader, the driver is also installed, working properly. After the customer login system through the browser, want to directly through the browser to access the card reader, can be

  The previous sections describe the modules of the check-in terminal.ProgramIt is much easier to do, but the actual implementation still requires a lot of energyUIIt is always laborious to do something. However, the technical level is

  This article describes the various modules of the system as a whole to understand the process of forming the system surface. First, it is clear thatCSSystem, the system has offline requirements, and more importantly, the client needs to

  There is nothing to talk about in this article. I just want to mention something different from the client. The biggest difference between a server and a client is that it does not face a single connection, but some connections. For

  Now let's get started. First, let's briefly describe the functions of the entire system, mainly laying the groundwork for some of my designs below. The sign-in system is divided into two parts: front-end display and background management

  The formal approach to data synchronization is to useSQL-ServerBut copying is a little tricky here. From the very beginning, considering the size of the client database and other requirements of the clientMSDEInstall oneSQL-ServerIt is a

  This article is not yet ready to enter a substantive stage. First, inserting segments is related to the exception handling part of the entire system. The most basic principle is, of course, all exceptions that may affect the normal operation

  After the two interfaces defined in the previous article, the menu and toolbar basically matchCommandMode, you can load it in the system. But theoretically, it is one thing to follow the pattern, actually writingCodeIt is another thing. We

    Product Introduction     Chip: NXP Mifare 1 S50 Storage Capacity: 8 kbit, 16 partitions, two groups of passwords per Partition Operating frequency: 13.56 MHz Communication speed: 106 kboud Read/write distance: 5-10 cm Read/write time:

includes: Auto identification systems, aids;application interface, api;middleware; application software. The automatic recognition system can be divided into data collection technology and feature collection technology according to the characteristics of recognition object. RFID Chinese is generally translated into radio frequency identification technology, non-contact identification technology. The typical RFID